TECKNET Bluetooth Headphones Over Ear, Wireless Headphones 70 Hours Playtime & Bluetooth 5.3, Foldable Lightweight Headphones Wireless Built-in Mic & HiFi Stereo, for Travel/Work/Phone/PC

[Bluetooth 5.3 & Built-in Microphone]: TECKNET bluetooth headphones offers stable transmission speed, lower latency, and better audio output thanks to Bluetooth 5.3 technology. The built-in microphone allows for hands-free and clear phone calls, so you can enjoy using the wireless headset while making your phone calls. [Up to 70 Hrs & Wired Mode]: TECKNET Bluetooth headphones over ear provide 70 hours of continuous music/talking time, quadruple as much as other Bluetooth headphones. Complimentary 3.5mm audio cable, when no power can be used as wired headphones. [Dual Connect & 4 EQ Modes]: Support two Bluetooth devices connected to the headset at the same time, and seamless switching, do not miss important information tips. TECKNET wireless headphones allows you to enjoy your favorite music through 4 different EQ modes by freely switch between Pop, Rock, Vocal, Bass, according to your preference. [Comfortable to Wear & isolate 95% noise]: TECKNET bluetooth headphones provide endless wearing comfort created by the high-quality padded protein leather headband and luxuriously soft memory foam earmuffs that simulate skin texture.Full wrap-around earmuffs with passive noise cancellation function, which can isolate 95% of external living noise. [Extendable & Foldable Design]: TECKNET Bluetooth headphones features an extendable headband, allowing you to choose the size that fits your head shape. Thanks to the foldable design, the Bluetooth headphones are more portable as they take up less space. [36 Months Warranty]: If you encounter any problems in using the product, please feel free to contact our professional customer service team, enjoying TECKNET 36 Months Warranty (Registered Only).